Blazer tank in k10 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

chevyz69 · 07-27-2011, 11:01 PM

Hey y'all I'm new to the site and I figured I'd post a question I have...

I have an 85 k10 that I'm currently building up. I am swapping in a 31 gallon blazer tank for the side tank the truck had, and I'm also swapping the motor to TBI since I had everything laying around to do it. I used an 87 harness to swap into the truck for everything and I deleted the dual tank portion of that harness (learned some things along the way)

The motor is mildly modified, and I have the hard parts to run tuned port injection but I don't have a harness or computer. I am going to be running a tpi fuel pump on my modified TBI engine that's going into the truck so....I was wondering if anyone would know a good place to buy fuel lines so I can make my own or any pre-made lines that I could use? If I could make it to where I could reuse most/all of the lines if I swap to tpi, that would be great. Anyone that has done this or anything like it, or anyone have ideas? Anything would be greatly appreciated!!
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russgt · 07-28-2011, 05:28 PM

I mounted a 31 gallon blazer tank in the back of my 77 K10 shortbox. I just bought some 3/8 steel line and made my own fuel lines, but I'm carbed so I cant help with FI lines. I did however reroute my fuel gauge wire to the drivers side with the taillight harness instead of running it with the starter wires.

chevyz69 · 07-28-2011, 08:49 PM

That front crossmember for the gas tank looks good man. I had an idea of doing it all in metal line but putting fittings on it to unscrew the front portion in case I do swap to tpi...and it would prolly be easier bending 2 sections instead of one....how hard was it doing all the bends?
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russgt · 07-30-2011, 12:09 AM

It wasnt too bad, just get a cheap hand held tubing bender and you'll be fine. The hardest bend was the almost 180 degree bend by the fuel pump. I used 1/8 wall 1" X 1" square tubing for the front crossmember and moved the rear crossmember back about 5 inches. It also uses stock blazer straps.

chevyz69 · 08-02-2011, 03:11 PM

I moved my rear crossmember back and fabbed up a front one also. Yours looks way better though! Iv been looking into steel braided flex hose...might do that idk yet.
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chevyz69 · 08-03-2011, 03:44 AM

Does anyone know what size the fittings are on the 87-91 31g blazer sending units?
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BigRed76 · 08-03-2011, 12:51 PM

Just out of curiousity, why are you going to run a tpi fuel pump with a tbi setup?

chevyz69 · 08-03-2011, 01:00 PM

The motor is modified, and if I can get a harness and computer for a decent price I have a tpi setup in the garage that I would like to use.
Posted via Mobile Device

07-27-2011, 11:01 PM	#1
chevyz69 Registered User Join Date: Jul 2011 Location: jacksonville, arkansas Posts: 6	Blazer tank in k10 Hey y'all I'm new to the site and I figured I'd post a question I have... I have an 85 k10 that I'm currently building up. I am swapping in a 31 gallon blazer tank for the side tank the truck had, and I'm also swapping the motor to TBI since I had everything laying around to do it. I used an 87 harness to swap into the truck for everything and I deleted the dual tank portion of that harness (learned some things along the way) The motor is mildly modified, and I have the hard parts to run tuned port injection but I don't have a harness or computer. I am going to be running a tpi fuel pump on my modified TBI engine that's going into the truck so....I was wondering if anyone would know a good place to buy fuel lines so I can make my own or any pre-made lines that I could use? If I could make it to where I could reuse most/all of the lines if I swap to tpi, that would be great. Anyone that has done this or anything like it, or anyone have ideas? Anything would be greatly appreciated!! Posted via Mobile Device

07-28-2011, 05:28 PM	#2
russgt Registered User Join Date: May 2008 Location: Waukesha, WI Posts: 904	Re: Blazer tank in k10 I mounted a 31 gallon blazer tank in the back of my 77 K10 shortbox. I just bought some 3/8 steel line and made my own fuel lines, but I'm carbed so I cant help with FI lines. I did however reroute my fuel gauge wire to the drivers side with the taillight harness instead of running it with the starter wires. __________________ 70 stepside 76 blazer 86 Silverado 20 Max Trailering 6.2 Crew 71 Nova SS My Blazer build http://67-72chevytrucks.com/vboard/s...d.php?t=363634

07-28-2011, 08:49 PM	#3
chevyz69 Registered User Join Date: Jul 2011 Location: jacksonville, arkansas Posts: 6	Re: Blazer tank in k10 That front crossmember for the gas tank looks good man. I had an idea of doing it all in metal line but putting fittings on it to unscrew the front portion in case I do swap to tpi...and it would prolly be easier bending 2 sections instead of one....how hard was it doing all the bends? Posted via Mobile Device

07-30-2011, 12:09 AM	#4
russgt Registered User Join Date: May 2008 Location: Waukesha, WI Posts: 904	Re: Blazer tank in k10 It wasnt too bad, just get a cheap hand held tubing bender and you'll be fine. The hardest bend was the almost 180 degree bend by the fuel pump. I used 1/8 wall 1" X 1" square tubing for the front crossmember and moved the rear crossmember back about 5 inches. It also uses stock blazer straps. __________________ 70 stepside 76 blazer 86 Silverado 20 Max Trailering 6.2 Crew 71 Nova SS My Blazer build http://67-72chevytrucks.com/vboard/s...d.php?t=363634

08-02-2011, 03:11 PM	#5
chevyz69 Registered User Join Date: Jul 2011 Location: jacksonville, arkansas Posts: 6	Re: Blazer tank in k10 I moved my rear crossmember back and fabbed up a front one also. Yours looks way better though! Iv been looking into steel braided flex hose...might do that idk yet. Posted via Mobile Device

08-03-2011, 03:44 AM	#6
chevyz69 Registered User Join Date: Jul 2011 Location: jacksonville, arkansas Posts: 6	Re: Blazer tank in k10 Does anyone know what size the fittings are on the 87-91 31g blazer sending units? Posted via Mobile Device

08-03-2011, 12:51 PM	#7
BigRed76 Registered User Join Date: Jan 2010 Location: Loveland, CO Posts: 1,921	Re: Blazer tank in k10 Just out of curiousity, why are you going to run a tpi fuel pump with a tbi setup? __________________ Zach 1970 Chevrolet Custom Camper K20 1971 GMC Super K2500, 12V/NV4500 swap in progress 1971 Chevrolet Custom C10 1972 Chevrolet Custom Deluxe C20, 5.3/4L60E 1972 Oldsmobile Cutlass Supreme, 455/TH400, 3.73 posi 2004 GMC Sierra 2500HD, LB7/Allison, CCSB 2005 GMC Sierra 1500, 5.3/4L60E, CCSB

08-03-2011, 01:00 PM	#8
chevyz69 Registered User Join Date: Jul 2011 Location: jacksonville, arkansas Posts: 6	Re: Blazer tank in k10 The motor is modified, and if I can get a harness and computer for a decent price I have a tpi setup in the garage that I would like to use. Posted via Mobile Device

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